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DNA
Test Description: Quick Regents practice review on genes and chromosomes.
Instructions: Answer all questions to get your test result.
1) What type of bonds are in between strands of DNA?
A
hydrogen bonds
B
covalent bonds
C
ionic bonds
D
james bonds
2) What do you call a subunit of DNA containing only three letters?
A
a codon
B
a triplet
C
a helix
D
a trifecta
3) What type of sugar is in a DNA molecule?
A
glucose
B
deoxyribose
C
maltose
D
ribose
4) What can nitrogenous bases also be called?
A
you know, those things
B
nucleic acids
C
phosphates
D
ribose
5) What will always pair with cytosine?
A
thymine
B
uracil
C
adenine
D
guanine
6) How many chromosomes does a NORMAL human being have?
A
6
B
48
C
46
D
8
7) If the sperm of a Drosophila contains 4 chromosomes, how many chromosomes do all of its other cells have?
A
46
B
8
C
2
D
4
8) What does RNA have that DNA doesn't?
A
adenine
B
thymine
C
uracil
D
cytosine
9) Which goes in order of increasing complexity?
A
chromosome, allele, gene
B
chromosome, gene, allele
C
allele, chromosome, gene
D
allele, gene, chromosome
10) DNA is made of
A
phosphates
B
proteins
C
sugars
D
all of the above
*select an answer for all questions
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